title: Dentistry in the northern peninsula of Michigan, circa 1900.
authors.forename: M E
authors.initials: ME
authors.lastname: Ring
mesh_terms: D000766:Anesthesia, Dental / Q000266:history*; D049672:History, 19th Century; D049673:History, 20th Century; D008824:Michigan; D009609:Nitrous Oxide / Q000266:history
chemical_list: D009609:Nitrous Oxide